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9c6c55c314
The new check_single_lv() function is called prior to the existing process_single_lv(). If the check function returns 0, the LV will not be processed. The check_single_lv function is meant to be a standard method to validate the combination of specific command + specific LV, and decide if the combination is allowed. The check_single function can be used by anything that calls process_each_lv. As commands are migrated to take advantage of command definitions, each command definition gets its own entry point which calls process_each for itself, passing a pair of check_single/process_single functions which can be specific to the narrowly defined command def.
107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "tools.h"
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static int vgdisplay_single(struct cmd_context *cmd, const char *vg_name,
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struct volume_group *vg,
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struct processing_handle *handle __attribute__((unused)))
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{
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if (arg_is_set(cmd, activevolumegroups_ARG) && !lvs_in_vg_activated(vg))
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return ECMD_PROCESSED;
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if (arg_is_set(cmd, colon_ARG)) {
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vgdisplay_colons(vg);
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return ECMD_PROCESSED;
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}
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if (arg_is_set(cmd, short_ARG)) {
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vgdisplay_short(vg);
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return ECMD_PROCESSED;
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}
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vgdisplay_full(vg); /* was vg_show */
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if (arg_is_set(cmd, verbose_ARG)) {
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vgdisplay_extents(vg);
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process_each_lv_in_vg(cmd, vg, NULL, NULL, 0, NULL,
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NULL, (process_single_lv_fn_t)lvdisplay_full);
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log_print("--- Physical volumes ---");
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process_each_pv_in_vg(cmd, vg, NULL,
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(process_single_pv_fn_t)pvdisplay_short);
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}
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check_current_backup(vg);
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return ECMD_PROCESSED;
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}
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int vgdisplay(struct cmd_context *cmd, int argc, char **argv)
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{
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if (arg_is_set(cmd, columns_ARG)) {
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if (arg_is_set(cmd, colon_ARG) ||
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arg_is_set(cmd, activevolumegroups_ARG) ||
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arg_is_set(cmd, short_ARG)) {
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log_error("Incompatible options selected");
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return EINVALID_CMD_LINE;
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}
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return vgs(cmd, argc, argv);
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} else if (arg_is_set(cmd, aligned_ARG) ||
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arg_is_set(cmd, binary_ARG) ||
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arg_is_set(cmd, noheadings_ARG) ||
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arg_is_set(cmd, options_ARG) ||
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arg_is_set(cmd, separator_ARG) ||
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arg_is_set(cmd, sort_ARG) || arg_is_set(cmd, unbuffered_ARG)) {
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log_error("Incompatible options selected");
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return EINVALID_CMD_LINE;
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}
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if (arg_is_set(cmd, colon_ARG) && arg_is_set(cmd, short_ARG)) {
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log_error("Option -c is not allowed with option -s");
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return EINVALID_CMD_LINE;
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}
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if (argc && arg_is_set(cmd, activevolumegroups_ARG)) {
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log_error("Option -A is not allowed with volume group names");
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return EINVALID_CMD_LINE;
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}
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/********* FIXME: Do without this - or else 2(+) passes!
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Figure out longest volume group name
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for (c = opt; opt < argc; opt++) {
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len = strlen(argv[opt]);
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if (len > max_len)
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max_len = len;
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}
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**********/
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return process_each_vg(cmd, argc, argv, NULL, NULL, 0, 0, NULL,
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vgdisplay_single);
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/******** FIXME Need to count number processed
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Add this to process_each_vg if arg_is_set(cmd,activevolumegroups_ARG) ?
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if (opt == argc) {
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log_print("no ");
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if (arg_is_set(cmd,activevolumegroups_ARG))
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printf("active ");
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printf("volume groups found\n\n");
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return LVM_E_NO_VG;
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}
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************/
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}
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